Weather is unpredictable, which can be a very bad thing when it comes to severe storms. While there are plenty of local meteorologists doing their best to interpret the patterns weather clings to, StormTag is a small, keyring device that functions on Bluetooth LE. StormTag can detect temperature, barometric pressure, humidity, and more, then send that data to a phone in real-time or upload it anonymously to the cloud to create a larger picture of data that can be used for scientific or hobbyist purposes. Whether it’s for a surfer who wants to catch a big wave, or just to keep safe in the face of unpredictable but dangerous weather, anyone interested in StormTag can get one for $20 in November 2014.